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  1. JK Wrangler Technical Forum
    2011 jeep JK My HVAC system is not sending power to the blower motor or the resistor. I get hot and cold air through my vents based off the speed I’m driving, if I change from the vents to the defrost on my control panel that works but other than that my blower motor is not working. I have...
  2. ZJ Grand Cherokee Forum
    Hey y'all! (For starters, I drive a 1997 Jeep Grand Cherokee Limited 4x4 V6) A week ago my battery terminals were loose so I had to jump the car a few times in order to get it running for a few days. After these few jumps, the Vehicle Display Module would stay on while the car was off and...
  3. WJ Grand Cherokee Forum
    Hey y'all! (For starters, I drive a 1997 Jeep Grand Cherokee Limited 4x4 V6) A week ago my battery terminals were loose so I had to jump the car a few times in order to get it running for a few days. After these few jumps, the Vehicle Display Module would stay on while the car was off and...
  4. XJ Cherokee Technical Forum
    Hopefully I can get some help with my blower issue. Alright, here's the story. 99 Cherokee XJ. One problem I really gotta get fixed is my defrost cuz I just failed for it. At first my defrost hardly worked and the heat blew enough that I didn't freeze this last winter, the AC worked fine. Now...
  5. TJ Wrangler Technical Forum
    My blower motor was not working on any speed. I got it working, however it keeps working even when the ignition is off and key out. To get it working, I shorted across the contacts (inside the relay housing) 4/1. (*- See wiring diagram link below) This made the blower work on all 4 speeds...
  6. TJ Wrangler Technical Forum
    Problem: Blower motor pulling to many amps and burning and melting wiring harness, pigtails, and switches. Fix: Replace Blower motor fan with nothing but a Dealer OEM Part. Possible pigtails or new wiring harness. Add in Relays to prevent future problems from happening. Relay Walk Through...
  7. ZJ Grand Cherokee Forum
    blower on AC for inside vents only works on low and med-low. Sometimes it will not work at all. I have done the following to try to correct the issue: *replaced resistor $65 *replaced blower motor $45 *checked 40 amp fuse under hood - it's good *checked relays with OEMs meter, all read good #s...
  8. TJ Wrangler Technical Forum
    Went out to lunch today and my whole HVAC system is dead. No fan, compressor doesn't kick in, nothing. Everything worked fine this morning. I don't have a service manual, so I do not know which fuse to check, after that it is probably beyond my skills anyway. It is 100 degrees here and I would...
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